DS1822+ Maxim Integrated Products, DS1822+ Datasheet - Page 19

• Manufacturer Part Number: DS1822+
• Description: Board Mount Temperature Sensors IC THERMOMETER ECONO DIG
• Manufacturer: Maxim Integrated Products

Specifications of DS1822+

• Temperature Threshold: Programmable
• Full Temp Accuracy: +/- 2 C
• Package / Case: TO-92
• Digital Output - Bus Interface: 1-Wire
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 55 C
• Output Type: Digital
• Supply Current: 1.5 mA
• Ic Output Type: Digital
• Sensing Accuracy Range: ± 2°C
• Supply Voltage Range: 3V To 5.5V
• Resolution (bits): 12bit
• Sensor Case Style: TO-92
• No. Of Pins: 3
• Accuracy %: 2°C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ABSOLUTE MAXIMUM RATINGS*
Voltage on Any Pin Relative to Ground
Operating Temperature Range
Storage Temperature Range
Solder Dip Temperature
Reflow Oven Temperature
*These are stress ratings only and functional operation of the device at these or any other conditions
DC ELECTRICAL CHARACTERISTICS
NOTES:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. DQ line is high (high-Z state).
11. Drift data is based on a 1000 hour stress test at +125°C with V
Supply Voltage
Pullup Supply
Voltage
Thermometer Error
Input Logic Low
Input Logic High
Sink Current
Standby Current
Active Current
DQ Input Current
Drift
above those indicated in the operation sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods of time may affect reliability.
PARAMETER
high level of the pullup is equal to V
supply rail for the strong pullup transistor must include margin for the voltage drop across the
transistor when it is turned on; thus: V
reduced to as low as 0.5V.
0.3V ≤ DQ ≤ V
All voltages are referenced to ground.
The Pullup Supply Voltage specification assumes that the pullup device is ideal, and therefore the
See typical performance curve in Figure 17.
Logic low voltages are specified at a sink current of 4mA.
To guarantee a presence pulse under low voltage parasite power conditions, V
Logic high voltages are specified at a source current of 1mA.
Standby current specified up to +70°C. Standby current typically is 3μA at +125°C.
To minimize I
Active current refers to supply current during active temperature conversions or EEPROM writes.
DDS
DD
, DQ should be within the following ranges: GND ≤ DQ ≤ GND + 0.3V or V
.
SYMBOL
V
I
V
t
V
V
I
I
ERR
DDS
I
DD
DQ
DD
PU
IH
L
IL
Parasite Power
Parasite Power
CONDITION
Local Power
Local Power
Local Power
V
V
-10°C to
-55°C to
+125°C
I/O
+85°C
DD
PU_ACTUAL
PU
=0.4V
=5V
. In order to meet the V
-0.5V to +6.0V
-55°C to +125°C
-55°C to +125°C
See IPC/JEDEC J-STD-020A Specification
19 of 21
= V
MIN
+3.0
+3.0
+3.0
+2.2
+3.0
-0.3
4.0
(-55°C to +125°C; V
PU_IDEAL
+220°C
TYP
±0.2
750
+ V
1
5
DD
TRANSISTOR
= 5.5V.
IH
The lower of
V
spec of the DS1822, the actual
DD
MAX
1000
+5.5
+5.5
+0.8
V
5.5
1.5
±2
±3
or
DD
+ 0.3
.
DD
ILMAX
= 3.0V to 5.5V)
UNITS NOTES
mA
mA
µA
nA
°C
°C
V
V
V
V
may have to be
1, 4, 5
DS1822
1, 2
1, 6
7, 8
10
11
1
3
1
9
DD
-